Submergible water-heater.



J. H. BERNHARD. SUBMBRGIBLE WATER HEATER.

APPLIOATIVON FILED MAY 26,1911.

Patented Deo. 31, 1912. Y

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JOHN' H. BERNHARD, OF MCGREGOR, IOWA.

SUBMERGIBLE WATER-HEATER.

To all whom t may concern:

Bo it known that l, Jol-IN H. BERNHARD, a citizen of vthe United States of America, and a resident of McGregor, in the county of Clayton and State of Iowa, have invented certain new and 'useful Irnpriwelnents in Submergible lVater-lleaters, of which the following is a specification.

This invention relates to what may be termed a submergible heater` adapted to be placed directly in a body of water contained in any open vessel, such as a tank, bath tub, Wash tub, or other receptacle for the purpose oit' raising the temperature ot the water to any desired degree.

The object ot' Ithis invention is to provide a heater ot this character which is simple in construction and in the use ot which the. maximum amount ot` heat units are derived from a given amount ot fuel consumed, and all danger trom tire and explosion is reduced to a minimum.

Ai'iother object is to provide a heater of this character so constructed as to render it. absolutely water-tight to protect the parts contained therein when the heater is submerged. Vith the above and other objects in view, which will more tully appear as the nature of the invention is described, the invention consists in the novel constrl'lction, combination and arrangement. hereinafter setl forth and claimed'.

ln the accompanying drawings: Figure 1 represents a vertical section of a heater constructed in accordance with this invention; Fig. 2 is a side elevation thereof; Fig-:8 is a top plan View ol" the heater. f

In the embodiment illustrated, a combustion chamber or easing is shown composed oitl upper and lower sections A and A1 closed at one end and provided at their other ends with laterally extending fianges B and B1, which, when the sections are assembled, contact with each other and are secured together' in any suitable manner, preferably by bolts C. This casing may be olf any suitable shape and size, and is here shown substantially barrel-shaped, the lower section A1 being provided with a nipple near its bottom in one side wall thereof which is threaded internally to receive. the exteriorly threaffled end of an air inlet pipe l) which is ol a suitable length to extend above thi water line ot' the vessel in which Specification of Letters Patent.

Application led May 26, .1.911. SerialiNo. 629,750.

Patented Dec. 31,1912.

said casing is to be submerged. An outlet pipe E. is connected at one end to the upper end of the section A and extends above the water level of the vessel in which the casing'V 1s submerged and is designed for carrying olf the products of combustion. These inlet and outlet pipes may be of any desired size, varying according to the size of the casing in connection with which they are employed.

A suitable oil reservoir H ,is supported by the air inlet pipe D and has a tube G leading therefrom through the pipe D for supplying fuel to a burner F disposed within the casing, preferably near the bottomv of the section A1. A needle or other valve IJ is disposed in the upper end et the pipe G for controlling the vfuel supply from the tank Il to the burner. As clearly shown the upper right angular portion of the fuel supply tube G projects through the pipe D adjacent to the upper end of thc same, whereby the reservoir Il is rigidly supported above the end of the pipe and 'further supports the 'fuel supply tubo or pipe in its operative position.

The burner F 'is preferably constructed as shown in Fig. l comprising a plurality of eoncentricallyV arranged annular partitions F1 which form oil chambers F2 with air .spaces F 3 between them, and into which oil is designed to flow from the pipe G which communicates with the bottom of Said oil chambers F2 through a conduit F. Disposed within these chambers F2 at the bottoms thereof, are asbestos or other suitable wicks f which are arranged in coils, and when ignited vaporize the fuel supply to the burner. Y This burner F is provided with a suitable cover F5 preferably convexe-concave in shape, and which is here shown seeu red to the burner by means ot a bolt passing centrally therethrough. This cover serves to retain the heat within the burner and to distribute it evenly throughout the easing, thereby equally heating all parts of said casing. This burner F'as shown is provided with a depending lug j" which is secured to an upwardly extending -forked lug f2 which projects from the bottom of the casing, by a bolt or any other suitable means.

Ti .i upper section A of the easing preferab f provided with an aperture K closed by a suitable closure K1, here shown in the form of a hinged door connected water-tight Water tight casing, air inlet and outlet con to the casing, snel which, is fles opened for igning the bums: or other purposes.

AS shown in the G yeldingly suppots one en L F and by he employeeeut of the '1 projecting slote. lug; f2 and. alle su lug f1 forming a part of' the be ,el ter can be aceuately adjusted 5 1. Y positon'and. Tigdly secure-:l bolt previously leemed to, through the burner is evenly flsu'bujtzu In the useof this healer, il; may be reu, moved from place to place, alle penis being rigidly connected. 'll'le bfuiser is nted through the opening li uf ply of fuel has been admitted therein; 3 You L. the valve J und said. opening K being curely closed by the door Kl, safl ws'ugj submerged in a vessel of Wafte Wulff 1t is desired to heat, sue-h for insieme? f3 u, tm used for stock or smila pufposf-zs, J left in said trough until. the le? com'mnefl therein is heated to 'the dashed tel "1 eruurf, when the heat may be cut o6' by mc JAas oil? the valve J and the heater muy be removed ucl placed in another vessel or Whelevef dos? I claim as my invention:

1.' A submergble heater comprising s nections to said casing, a burner losated in compsis'ulg s, 1 gustsbly 45 iA @nel ouzl.

ifl 'esevol e length of r laterally extending @sul to the will thereby, ,eemleoiscl to one 5 suggested tl1efe'by, y suppozng 'the :ge-feb] the 40 les niet felpe wps also ,suppofsed 

